| ID | Name | Type |
|---|---|---|
| #5562 | Gremlin Graphics Software Ltd [FR] | Z |
| #5563 | Gremlin Industries | Z |
| #5564 | Gremlin Interactive | Z |
| #21607 | Gremlin [2] | - |
| #16167 | Gren Hatton | + |
| #5565 | Grenville Manuel | ? |
| #5566 | Grepan | ? |
| #5567 | Greppo Franko | ? |
| #5568 | Grey | ? |
| #5569 | Greyfriars | ? |
| #5570 | Grib Research | Z |
| #5571 | Griffin Electronics | Z |
| #5572 | Griffin Software [1] | Z |
| #5573 | Griffin Software [2] | P |
| #18061 | Grigoriy Klimenko | + |
| #5324 | Grigoriy Kviring | + |
| #19732 | Grigoriy Yegorov | + |
| #20180 | Grigoryev Bros | P |
| #5574 | Grimoire Adventures | Z |
| #5575 | Grisewood & Dempsey Ltd | Z |